2003 JEEP GRAND CHEROKEE PAGE 315
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8W-70 SPLICE INFORMATION
Component PageS100.............................8W-10-11, 12
S102.............................8W-30-21, 45
S104................................8W-15-4
S105...............................8W-30-20
S106.............................8W-10-19, 20
S107............................8W-70-2, 3, 4, 5
S109...............................8W-10-21
S110 ................................8W-70-2
S111................................8W-10-23
S112............................8W-70-2, 3, 4, 5
S113................................8W-31-13
S114 ................................8W-15-2
S115................................8W-10-17
S116................................8W-12-18
S118................................8W-10-22
S119 ..............................8W-31-9, 10
S120...............................8W-30-20
S121...............................8W-10-21
S122...............................8W-31-5, 6
S123.............................8W-10-19, 20
S123...............................8W-30-12
S124...............................8W-10-22
S125................................8W-30-6
S126...............................8W-30-23
S127...............................8W-10-27
S128.............................8W-10-19, 20
S130...............................8W-18-3, 5
S131...............................8W-70-6, 7
S132............................8W-15-9, 10, 11
S133............................8W-15-9, 10, 11
S134...............................8W-15-6, 7
S135...............................8W-10-18
S136...............................8W-10-18
S137...............................8W-10-31
S139................................8W-15-3
S140................................8W-15-7
S141................................8W-15-6
S142..............................8W-12-3, 32
S143..............................8W-12-5, 32
S145................................8W-70-6
S147...............................8W-30-51
S151................................8W-15-5
S152................................8W-15-8
S153...............................8W-12-14
S154...............................8W-12-33
S155...............................8W-12-33
S156...............................8W-12-14
S158................................8W-70-5
S160................................8W-30-11
S162...............................8W-10-26
S163..............................8W-12-7, 15
S165................................8W-51-9
S168...............................8W-10-26
S169...............................8W-30-47
S170...............................8W-30-44
S171...............................8W-30-36
S172...............................8W-30-36
S174................................8W-15-6
S175................................8W-21-2
S176...............................8W-10-26
S200...............................8W-63-12
S201...............................8W-15-15
S202...............................8W-44-10
S203...............................8W-15-14
S204...............................8W-12-22
S205...............................8W-15-15
S206...............................8W-12-22
S207...............................8W-12-16
S208................................8W-44-8
S209................................8W-12-11
S210...............................8W-18-4, 7
S211................................8W-15-13
S212................................8W-53-2
S213................................8W-33-5
S214................................8W-33-5
S215...............................8W-47-13
S216...............................8W-47-13
S217...............................8W-18-10Component PageS221................................8W-12-11
S222...............................8W-30-37
S223............................8W-18-8, 9, 10
S224.............................8W-15-17, 18
S300...............................8W-15-21
S301...............................8W-15-21
S302...............................8W-61-5, 6
S303...............................8W-61-5, 6
S304...............................8W-12-16
S305...............................8W-18-2, 6
S306...............................8W-12-27
S307...............................8W-15-19
S308...............................8W-12-36
S309...............................8W-12-12
S310...............................8W-51-7, 8
S311 ................................8W-51-5
S312...............................8W-18-2, 6
S313...............................8W-51-5, 6
S314................................8W-33-2
S315...............................8W-70-6, 7
S316...............................8W-12-18
S317................................8W-61-5
S318................................8W-61-5
S319...............................8W-12-21
S323................................8W-18-9
S324...............................8W-18-3, 5
S326.............................8W-12-12, 13
S327...............................8W-12-32
S328................................8W-51-7
S329...............................8W-15-17
S330...............................8W-15-16
S331.............................8W-15-17, 18
S332.............................8W-15-17, 18
S333................................8W-47-3
S334................................8W-12-11
S336...............................8W-15-16
S337...............................8W-12-25
S338...............................8W-15-16
S339...............................8W-61-5, 6
S340...............................8W-61-5, 6
S341.............................8W-15-17, 22
S342................................8W-12-9
S345...............................8W-15-19
S346...............................8W-12-16
S347...............................8W-12-30
S348...............................8W-12-24
S349...............................8W-12-23
S351................................8W-70-8
S352................................8W-63-8
S353................................8W-12-9
S355.............................8W-15-18, 21
S356.............................8W-15-21, 22
S357.............................8W-15-16, 18
S358...............................8W-15-22
S359................................8W-50-9
S360................................8W-47-4
S361................................8W-47-4
S362................................8W-47-4
S363................................8W-47-4
S364................................8W-18-5
S365................................8W-39-11
S366...............................8W-12-15
S367...............................8W-12-36
S368................................8W-47-3
S369.............................8W-15-21, 22
S370...............................8W-15-19
S400...............................8W-12-17
S401...............................8W-15-20
S402...............................8W-15-20
S403...............................8W-12-16
S404...............................8W-12-30
S405...............................8W-12-30
S406................................8W-54-6
S407................................8W-54-6
S408...............................8W-15-19
S410...............................8W-15-19
S411 .............................8W-12-12, 13
S412...............................8W-15-20
WJ8W-70 SPLICE INFORMATION 8W - 70 - 1
Page 1049 of 2199
Component Page
C310 (EXCEPT BUILT-UP-EXPORT).... 8W-80-55
C310 (EXCEPT BUILT-UP-EXPORT).... 8W-80-55
C311 ............................. 8W-80-55
C311 ............................. 8W-80-55
C312............................. 8W-80-55
C312............................. 8W-80-56
C313............................. 8W-80-56
C313............................. 8W-80-56
C314............................. 8W-80-56
C314............................. 8W-80-57
C315............................. 8W-80-57
C315............................. 8W-80-57
C316 (EXCEPT BUILT-UP-EXPORT).... 8W-80-58
C316 (EXCEPT BUILT-UP-EXPORT).... 8W-80-58
C317............................. 8W-80-58
C317............................. 8W-80-58
C318............................. 8W-80-58
C318............................. 8W-80-59
C319............................. 8W-80-59
C319............................. 8W-80-59
CAMSHAFT POSITION
SENSOR (DIESEL)................ 8W-80-59
CAMSHAFT POSITION
SENSOR (GAS)................... 8W-80-59
CAPACITOR (4.0L).................. 8W-80-59
CAPACITOR NO. 1 (4.7L)............. 8W-80-60
CAPACITOR NO. 2 (4.7L)............. 8W-80-60
CARGO LAMP..................... 8W-80-60
CENTER HIGH MOUNTED
STOP LAMP..................... 8W-80-60
CIGAR LIGHTER................... 8W-80-60
CLOCKSPRING C1................. 8W-80-61
CLOCKSPRING C2................. 8W-80-61
CLOCKSPRING C3................. 8W-80-61
CLOCKSPRING C4................. 8W-80-61
COIL ON PLUG NO. 1 (4.7L).......... 8W-80-61
COIL ON PLUG NO. 2 (4.7L).......... 8W-80-62
COIL ON PLUG NO. 3 (4.7L).......... 8W-80-62
COIL ON PLUG NO. 4 (4.7L).......... 8W-80-62
COIL ON PLUG NO. 5 (4.7L).......... 8W-80-62
COIL ON PLUG NO. 6 (4.7L).......... 8W-80-62
COIL ON PLUG NO. 7 (4.7L).......... 8W-80-63
COIL ON PLUG NO. 8 (4.7L).......... 8W-80-63
COIL RAIL (4.0L)................... 8W-80-63
COMPACT DISC CHANGER
(PREMIUM RADIO)............... 8W-80-63
CONTROLLER ANTILOCK BRAKE.... 8W-80-64
COOLANT LEVEL SENSOR.......... 8W-80-64
CRANKCASE HEATER (DIESEL)...... 8W-80-64
CRANKSHAFT POSITION SENSOR
(DIESEL)....................... 8W-80-65
CRANKSHAFT POSITION SENSOR
(GAS).......................... 8W-80-65
DATA LINK CONNECTOR............ 8W-80-65
DIAGNOSTIC JUNCTION PORT....... 8W-80-66Component Page
DRIVER AIRBAG SQUIB 1........... 8W-80-66
DRIVER AIRBAG SQUIB 2........... 8W-80-66
DRIVER BLEND DOOR MOTOR/ACTUATOR
(LHD) (AZC)..................... 8W-80-67
DRIVER BLEND DOOR MOTOR/ACTUATOR
(RHD) (AZC)- BLACK 2 WAY........ 8W-80-67
DRIVER CURTAIN AIRBAG.......... 8W-80-67
DRIVER CYLINDER LOCK SWITCH . . . 8W-80-67
DRIVER DOOR LOCK MOTOR/AJAR
SWITCH........................ 8W-80-68
DRIVER DOOR MODULE C1......... 8W-80-68
DRIVER DOOR MODULE C2......... 8W-80-68
DRIVER DOOR MODULE C3......... 8W-80-69
DRIVER FRONT DOOR
COURTESY LAMP................ 8W-80-69
DRIVER FRONT POWER
WINDOW MOTOR................ 8W-80-69
DRIVER HEATED SEAT BACK
(PREMIUM I/III)................. 8W-80-69
DRIVER HEATED SEAT CUSHION
(PREMIUM I/III)................. 8W-80-69
DRIVER HEATED SEAT SWITCH...... 8W-80-70
DRIVER LUMBAR MOTOR
(MIDLINE/PREMIUM)............. 8W-80-70
DRIVER LUMBAR SWITCH
(MIDLINE/PREMIUM)............. 8W-80-70
DRIVER POWER MIRROR........... 8W-80-70
DRIVER POWER SEAT FRONT
RISER MOTOR................... 8W-80-71
DRIVER POWER SEAT FRONT
RISER MOTOR SENSOR
(PREMIUM II/III)................. 8W-80-71
DRIVER POWER SEAT HORIZONTAL
MOTOR........................ 8W-80-71
DRIVER POWER SEAT HORIZONTAL
MOTOR SENSOR
(PREMIUM II/III)................. 8W-80-71
DRIVER POWER SEAT REAR
RISER MOTOR................... 8W-80-71
DRIVER POWER SEAT REAR
RISER MOTOR SENSOR
(PREMIUM II/III)................. 8W-80-72
DRIVER POWER SEAT
RECLINER MOTOR............... 8W-80-72
DRIVER POWER SEAT
RECLINER MOTOR SENSOR
(PREMIUM II/III)................. 8W-80-72
DRIVER POWER SEAT SWITCH
(EXCEPT MIDLINE/PREMIUM)..... 8W-80-72
DRIVER POWER SEAT SWITCH
(MIDLINE/PREMIUM)............. 8W-80-73
DRIVER REAR POWER
WINDOW MOTOR................ 8W-80-73
DRIVER REAR POWER WINDOW
SWITCH........................ 8W-80-73
8W - 80 - 2 8W-80 CONNECTOR PIN-OUTWJ
Page 1319 of 2199
DESCRIPTION SPECIFICATION
Exhaust 36.87 - 37.13 mm
1.4516 - 1.4618 in.)
Length (Overall)
Intake 113.45 - 114.21 mm
(4.4666 - 4.4965)
Exhaust 114.92 - 115.68 mm
(4.5244 - 4.5543 in.)
Stem Diameter
Intake 6.931 - 6.957 mm
(0.2729 - 0.2739 in.)
Exhaust 6.902 - 6.928 mm
(0.2717 - 0.2728 in.)
Stem - to - Guide
Clearance
Intake .018 - .069 mm
(0.0008 - 0.0028 in.)
Exhaust .047 - .098 mm
(0.0019 - 0.0039 in.)
Max. Allowable Stem -
to -
Guide Clearance
(Rocking
Method)
Intake 0.069 mm (0.0028 in.)
Exhaust 0.098 mm (0.0039 in.)
Valve Lift (Zero Lash)
Intake 11.25 mm (0.443 in.)
Exhaust 10.90 mm (0.4292 in.)
VALVE SPRING
Free Length (Approx)
Intake and Exhaust 48.6 mm (1.9134 in.)
Spring Force (Valve
Closed)
Intake and Exhaust 315.5 - 352.5 N @ 40.89
mm
(70.92722 - 79.24515 lbs.
@ 1.6099 in.)DESCRIPTION SPECIFICATION
Spring Force (Valve
Open)
Intake and Exhaust 786.0 - 860.0 N @ 29.64
mm
176.6998 - 193.3357 lbs.
@ 1.167 in.)
Number of Coils
Intake and Exhaust 6.69
Wire Diameter
Intake and Exhaust 4.2799 - 4.3561 mm
(0.1685 - 0.1715 in.)
Installed Height (Spring
Seat to Bottom of
Retainer)
Nominal
Intake 40.97 mm (1.613 in.)
Exhaust 40.81 mm (1.606 in.)
CYLINDER HEAD
Gasket Thickness
(Compressed) .7 mm (0.0276 in.)
Valve Seat Angle 44.5É - 45.0É
Valve Seat Runout (MAX) 0.051 mm (0.002 in.)
Valve Seat Width
Intake 1.75 - 2.36 mm
(0.0698 - 0.0928 in.)
Exhaust 1.71 - 2.32 mm
(0.0673 - 0.0911 in.)
Guide Bore Diameter
(Std.)6.975 - 7.00 mm
(0.2747 - 0.2756 in.)
Cylinder Head Warpage
(Flatness) 0.0508 mm (0.002 in.)
OIL PUMP
Clearance Over Rotors /
End Face (MAX).035 - .095 mm
(0.0014 - 0.0038 in.)
Cover Out - of -Flat
(MAX).025 mm (0.001 in.)
Inner and Outer Rotor
Thickness 12.02 mm (0.4731 in.)
9 - 76 ENGINE - 4.7LWJ
ENGINE - 4.7L (Continued)
Page 1520 of 2199
TRANSMISSION AND TRANSFER CASE
TABLE OF CONTENTS
page page
AUTOMATIC TRANSMISSION - 42RE..........1
AUTOMATIC TRANSMISSION - 545RFE......177TRANSFER CASE - NV242................280
TRANSFER CASE - NV247................315
AUTOMATIC TRANSMISSION - 42RE
TABLE OF CONTENTS
page page
AUTOMATIC TRANSMISSION - 42RE
DESCRIPTION..........................3
OPERATION............................5
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - AUTOMATIC
TRANSMISSION......................11
DIAGNOSIS AND TESTING - PRELIMINARY . 11
DIAGNOSIS AND TESTING - ROAD
TESTING............................11
DIAGNOSIS AND TESTING - HYDRAULIC
PRESSURE TEST.....................12
DIAGNOSIS AND TESTING - AIR CHECKING
TRANSMISSION CLUTCH AND BAND
OPERATION.........................15
DIAGNOSIS AND TESTING - CONVERTER
HOUSING FLUID LEAK.................15
DIAGNOSIS AND TESTING - DIAGNOSIS
CHARTS............................16
STANDARD PROCEDURE - ALUMINUM
THREAD REPAIR......................26
REMOVAL.............................27
DISASSEMBLY.........................29
CLEANING............................34
INSPECTION..........................34
ASSEMBLY............................34
INSTALLATION.........................41
SCHEMATICS AND DIAGRAMS
HYDRAULIC SCHEMATICS..............43
SPECIFICATIONS
TRANSMISSION......................55
SPECIAL TOOLS
RE TRANSMISSIONS..................57
ACCUMULATOR
DESCRIPTION.........................60
OPERATION...........................60
INSPECTION..........................60BANDS
DESCRIPTION.........................61
OPERATION...........................61
ADJUSTMENTS
ADJUSTMENT - BANDS................62
BRAKE TRANSMISSION SHIFT INTERLOCK
MECHANISM
DESCRIPTION.........................63
OPERATION...........................63
DIAGNOSIS AND TESTING - BRAKE
TRANSMISSION SHIFT INTERLOCK.......63
ADJUSTMENTS - BRAKE TRANSMISSION
SHIFT INTERLOCK....................64
ELECTRONIC GOVERNOR
DESCRIPTION.........................65
OPERATION...........................65
REMOVAL.............................67
INSTALLATION.........................67
EXTENSION HOUSING BUSHING
REMOVAL.............................68
INSTALLATION.........................68
EXTENSION HOUSING SEAL
REMOVAL.............................69
INSTALLATION.........................69
FLUID AND FILTER
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - EFFECTS OF
INCORRECT FLUID LEVEL..............69
DIAGNOSIS AND TESTING - CAUSES OF
BURNT FLUID........................69
DIAGNOSIS AND TESTING - FLUID
CONTAMINATION.....................70
STANDARD PROCEDURE
STANDARD PROCEDURE - FLUID LEVEL
CHECK.............................70
WJTRANSMISSION AND TRANSFER CASE 21 - 1
Page 1834 of 2199
TRANSFER CASE - NV247
TABLE OF CONTENTS
page page
TRANSFER CASE - NV247
DESCRIPTION........................315
OPERATION..........................316
DIAGNOSIS AND TESTING - TRANSFER
CASE - NV247.......................316
REMOVAL............................317
DISASSEMBLY........................317
CLEANING...........................324
INSPECTION.........................324
ASSEMBLY...........................326
INSTALLATION........................335
SPECIFICATIONS
TRANSFER CASE - NV247.............336
SPECIAL TOOLS
TRANSFER CASE - NV247.............337FLUID
STANDARD PROCEDURE - FLUID DRAIN/
REFILL............................338
FRONT OUTPUT SHAFT SEAL
REMOVAL............................338
INSTALLATION........................338
REAR RETAINER BUSHING AND SEAL
REMOVAL............................339
INSTALLATION........................339
SHIFT CABLE
REMOVAL............................340
INSTALLATION........................340
TRANSFER CASE - NV247
DESCRIPTION
The NV247 (Fig. 1) is an on-demand 4-wheel drive
transfer case with two operating ranges and a neu-
tral position. Operating ranges are 4-high and 4-low.
The 4-low range is used for extra pulling power in
off-road situations.
TRANSFER CASE IDENTIFICATION
A circular I.D. tag is attached to the rear case of
each NV247 transfer case (Fig. 2). The tag indicates
the following information:
²Model number
²Serial number
²Assembly number
²Gear ratio
²Location of manufacture
The transfer case serial number also represents
the date of build.
Fig. 1 NV247 Transfer Case
Fig. 2 Transfer Case I.D. Tag
1 - FILL PLUG
2 - I.D. TAG
3 - DRAIN PLUG
WJTRANSFER CASE - NV247 21 - 315